Home / 28,921,248.48-39,912,057.41-15,868,503.93

Finding the Fourth Proportional to 28,921,248.48, 39,912,057.41 and 15,868,503.93

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Solution

The fourth proportional to 28,921,248.48, 39,912,057.41 and 15,868,503.93 is: 21,898,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921,248.48 : 39,912,057.41 = 15,868,503.93 : x
  2. Step 2: Convert to fraction form
    28,921,248.48/39,912,057.41 = 15,868,503.93/x
  3. Step 3: Cross multiply
    28,921,248.48x = 39,912,057.41 × 15,868,503.93
  4. Step 4: Simplify right side
    28,921,248.48x = 633,344,639,864,970.50
  5. Step 5: Solve for x
    x = 633,344,639,864,970.50/28,921,248.48
  6. Step 6: Final answer
    x = 21,898,938.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.